Rocker centering device



Feb. 19, 1929.

W. M. SHEEHAN ET AL ROCKER CENTERING DEVICE Filed NOV. 2, 192'? www.,

Patented Feb. 19,719.29.

UNITED STATES 1,102,271 PATENT OFFICE.

WILLIAM M. SHEEHAN, OF ST. LOUIS, MISSOUBI, ANI) EINAR G. HALLVQUIST,Ol' EDWARDSVILLE, ILLINOIS, ASSIGNORS T0 COMMONWEALTH STEEL COMPANY, OFvGRANITE CITY, ILLINOIS, A. CORPORATION OF NEW JERSEY.

ROCKEB CENTEBING DEVICE.'

Application led November 2, 1927. Serial No. 230,504.

Our invention relates to railway rolling stock and consists in a novelrocker structure for use incentering devices such as are `utilized formounting a bolster, or other transversely moving part, on the frame of atruck. The device may be used on a two or four wheel trailer truck or ona pony truck and the' general operation of such centering device isclearly disclosed in Woodward Patent No. 1,060,222.

Our present invention consists in providing rockers'for devices of thistype with renewable bearingsA of the type illustrated and describedherein, which bearings may be of restricted area and applied to the bodyof the rocker and adapted to prolong the useful life of the rocker. Whenworn to an appreciable extent the bearing elements may be replaced withother similar bearing elements without renewing the body of the rocker.

In the accompanying drawings which illustrate our invention-- y Figure 1is a one-halfl transverse vertical section thrgugh a pony truck equippedwith a rocker centering device utilizing one of our rockers and is takenapproximately on line 1 1 of Figure 2.

Figure 2 is a longitudinal vertical section through the same truck andis taken approximately on line 2-2 of Figure 1.

Figure 3 is an enlarged detail elevation of a modified form of rocker.

Fi re 4 is a similar view of another moditied orm of rocker.. l

In the construction illustrated in Figures 1 and 2, the truck is shownywith the usual wheels 1, axles 2, and truck frame 3 includingtransommembers 4 having `a bottom connecting web 5 which mounts rockerseats 6. All of the above parts are of well known construction and donot-form any part of our present invention.

`Each of the rocker members mounted on seats 6 comprises interconnectedspaced rocker body portions 7 generally triangular in shape and eachprovided on its base with spaced eleni'ents 8 which are seated inrecesses in the 'bottom of the rocker and project therefrom to formsemi-cylindrical journal elements. Preferably theseelements may take theform of hard steel rollers which are seated in the recesses in thebottom of the body of the rocker. They 'may be welded to the rocker atintervals as indicated at W and may be removed and replaced when desiredwithout scrappin the body of the rocker. Natural- -body 12 by welding orother suitable means.

In this modification we indicate tongues 13 on the journal portionfitted into recesses in the body portion.

, Another modification is indicated in Fig- Ure 4 in which the bodyportion 14 of the rocker is provided with integral semi-cylindrical1projections 15, each of which has applled t ereto a semi-cylindricalconvex wear platel attached to the body by welding as indicated at W.

It will be obvious that with the above construction the body of therocker will last indefinitely, ba'rrin accidents, and the replacement ofrockers ecause of wear, as is now practiced, maybe eliminated;

While We have referred to the use of bearing elements of differentmaterial than the body' of the rocker, and preferably of hardermaterial, we consider the use of separable bearing elements of the samematerial as a novel construction and contemplate the exclusive use ofsuch structure as well as any other modification of our preferredstruc-` ture as come within the scope of our claims.

We claim:

A railway vcentering device rocker comprlsing a body portion and anelement of different material projecting from said body portibn andforming a replaceable semicylindrical journal.

2. A railway centering device rocker comprising a body portion of castmetal and an element of harder metal projecting from Said body portionand forming a replaceable semi cylindrical journal. A

3. In a railway centering device rocker, a body portion, and a journalforming member, having a downwardly facing convex surface, detachablysecured to said body portin.

element projecting therefrom.

5. In a rallway centering device rocker, a cast metal body and aseparatelyformed roller attached to the bottom of said body and forming'a journal element therefor.'

6. In a railway centering device rocker, a cast metal body withtransverse recesses in its lower face, and rollers of hard steelseated"A in said recesses and projecting therefrom to form spacedjournal elements for the rocker.

`'i'. A vrailway centering device rocker provided with hard steelbearing elements at its supported and supporting points.

8. A railway centering device rocker provided with renewable hard steelbearing elements at its supported and supporting points.

9. A railway centering device rocker' comprising a triangular-shapedbody portion of cast metal, spaced journals extending' transversely ofthe base of said body portion, and a bearing element at the apex' ofsaid body portion, said journals and element being formed of hard steelmetal and detachable from said body portion for renewal purposes.

10. A railway centering device rocker comtion, said elements beingdetachable from said body portion for renewal purposes.

11. A railway centering device rocker comprising a body portion and aseparableelement projecting ifrom said body portion and forming areplaceable semi-cylindrical journal.

12. In a railway centering device`rocker, a body portion with recesses1n its lower face, and separately formed'rollers seated in said recessesand projecting therefrom to form spaced journal elements for the rocker.i

13. In a railwa centering device rocker, a body portion wit a recess inits lower face, and a removable element seated in said recess andprojecting therefrom to form a cylindrical journal element for therocker.

14. A railway centering device rocker provided with separable bearingelements at its supported and supporting points.

In testimony whereof we hereunto aix our signatures this 22d day ofOct., 1927.

WILLIAM M. SHEEHAN. EINAR G. HALLQUIST.

